The Balance tab contains information about the current and new tariff plans, the end date of the prepaid period, and the account balance. In this tab, you can also pay online using any bank card or Portmone payment system in this tab.
If the account balance is less than your monthly payment, the account will be blocked after the end of the prepaid period. Once you pay according to the tariff, the blocking will be removed. The beginning of a new billing period is the date of debt repayment.